/*
 * Copyright (C) 2005 Philippe Gerum <rpm@xenomai.org>.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef _XENO_POSIX_MQUEUE_H
#define _XENO_POSIX_MQUEUE_H

#if defined(__KERNEL__) || defined(__XENO_SIM__)

#include <nucleus/xenomai.h>

#ifdef __KERNEL__
#include <linux/types.h>
#include <linux/signal.h>
#include <linux/fcntl.h>
#endif /* !__KERNEL__ */

#ifdef __XENO_SIM__
#include <posix_overrides.h>
#endif /* __XENO_SIM__ */

#else /* !(__KERNEL__ || __XENO_SIM__) */

#include <xeno_config.h>
#include <fcntl.h>

#endif /* !(__KERNEL__ || __XENO_SIM__) */

#if defined(__KERNEL__) || defined(__XENO_SIM__) || !defined(HAVE_MQUEUE_H)

#ifndef MQ_PRIO_MAX
#define MQ_PRIO_MAX 32768
#endif

#ifndef __KERNEL__
typedef unsigned long mqd_t;
#endif /* !__KERNEL__ */

struct mq_attr {
    long    mq_flags;
    long    mq_maxmsg;
    long    mq_msgsize;
    long    mq_curmsgs;
};

#ifdef __cplusplus
extern "C" {
#endif

int mq_getattr(mqd_t qd,
	       struct mq_attr *attr);

int mq_setattr(mqd_t qd,
               const struct mq_attr *__restrict__ attr,
               struct mq_attr *__restrict__ oattr);

int mq_send(mqd_t qd,
	    const char *buffer,
	    size_t len,
	    unsigned prio);

int mq_close(mqd_t qd);

ssize_t  mq_receive(mqd_t q,
		    char *buffer,
		    size_t len,
		    unsigned *prio);

ssize_t  mq_timedreceive(mqd_t q,
                         char *__restrict__ buffer,
                         size_t len,
                         unsigned *__restrict__ prio,
                         const struct timespec *__restrict__ timeout);

int mq_timedsend(mqd_t q,
                 const char *buffer,
                 size_t len,
                 unsigned prio,
                 const struct timespec *timeout);

int mq_notify(mqd_t mqdes, const struct sigevent *notification);

mqd_t mq_open(const char *name,
	      int oflags,
	      ...);

int mq_unlink(const char *name);

#ifdef __cplusplus
}
#endif

#else /* !(__KERNEL__ || __XENO_SIM__ || !HAVE_MQUEUE_H) */

#include_next <mqueue.h>

#ifdef __cplusplus
extern "C" {
#endif

mqd_t __real_mq_open(const char *name,
		     int oflags,
		     ...);

int __real_mq_close(mqd_t qd);

int __real_mq_unlink(const char *name);

int __real_mq_getattr(mqd_t qd,
		      struct mq_attr *attr);

int __real_mq_setattr(mqd_t qd,
		      const struct mq_attr *__restrict__ attr,
		      struct mq_attr *__restrict__ oattr);

int __real_mq_send(mqd_t qd,
		   const char *buffer,
		   size_t len,
		   unsigned prio);

int __real_mq_timedsend(mqd_t q,
			const char * buffer,
			size_t len,
			unsigned prio,
			const struct timespec *timeout);

ssize_t __real_mq_receive(mqd_t q,
			  char *buffer,
			  size_t len,
			  unsigned *prio);

ssize_t __real_mq_timedreceive(mqd_t q,
			       char *__restrict__ buffer,
			       size_t len,
			       unsigned *__restrict__ prio,
			       const struct timespec *__restrict__ timeout);

int __real_mq_notify(mqd_t mqdes, const struct sigevent *notification);

#ifdef __cplusplus
}
#endif

#endif /* !(__KERNEL__ || __XENO_SIM__ || !HAVE_MQUEUE_H) */

#endif /* _XENO_POSIX_MQUEUE_H */
